Improvement in steam-plows



L. B. WO'OLFOLK.-

Steam -'Plow.

Patented June 26, 1860,.'

Utvtrran STATES PATENT OFFICE.

L. B. VOOLFOLK, OF NASHVILLE, TNNESSEE.

IMPROVEMENT IN STEAM-PLOWS.

Specification forming part of Let-ters Patent No. 28,933, dated June 2G, 1860.

To all whom it may concern:

Beitknown thatI,L. B. WOOLFOLK, ofNashville, in the State of Tennessee, have invented certain new and usefulImprovements in Steam- Plows; and I do hereby declare that the followingis a full, clear, and exact description of the same, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature of myinvention consists in construeting and arranging the several parts hereinafter particularly described substantially in the manner that will be set forth.

In the annexed drawings, Figure l represents a back view of the apparatus, the driving-wheel and axle being shown in section. Fig. 2 is a section of a detached portion of the machine. Fig. 4 is aplan View of the same part. Figs. 3 and 5 are moditications of the plan seen in Fig. i.

In the figures,'l" represents an axle, to which two driving-wheels, E E, are secured. Upon a hsubstantial frame which is secured to this axle are erected the supports L L L'. I represents a horizontal shaft, which has its bearings in the supports L L. Upon this shaft I are secured two cog-wheels, J J, and also two sleeves, each of which are provided with two bevelwhee1s,ff, as represented in Fig. l. These sleeves slide upon the shaft I, and are kept in place and from turning upon said shaft by means of pins, which pass through the slots 'i i.

g g represent springs, which surround thc shaft I, and which press against the bevelwheels on the sleeves in the manner represented, so that if the sleeve is moved to one side or the other from its normal position they will relturn to it again when pressure is removed from it.

C C represent two s'hort shafts, which have their bearings in the supports L L indirectly, their ends being secured eccentrically in two short cylinders, SSz, which bear directly in the said supports. The cylinders S S2 are provided with bevel-wheels It rlhe bevelwheels and the cylinder have a positive rotary motion when they turn; but the shafts C U, which are secured in the cylinders, have an eccentric motion as the cylinders S S2 arerevolved.

KK represent cog-wheels, which are secured upon the shaft C C, and which gear into the wheels JJ, which are situatedjust above them.

It will bc seen readily that the turning of the cylinders S S2 wiil cause the wheels K to recede from and to approach the wheels J alternately. /Vhen the cylinders are turned so that the shafts C C will be at their highest point of rotation the wheels K K will gear full into the Wheels J J; but when said shafts are at their lowest point the teeth of the two wheels will part, not gearinginto each other. The Wheels G are also secured to the shafts C, and are cogged, and gear into the cogged rims F ofthe driving-wheels E.

D and H represent vertical shafts. To the shafts H are secured the bevel-wheels e and d and the pinions c, and to the shafts D are secured the bevel-Wheels m and the pinions a.. Between the pinions a and o are situated the idle wheels b, which serve to communicate inotion from one to the other.

It will be clearly seen that by this. system of Wheels just mentioned the bevel-wheels f upon the sleeve on the shaft I may be made to gear into the bevel-wheels e, and thus motion may be communicated from the shaft H through the bevel-wheels d to one of the bevel-wheels 1t on the cylinders S-and at the same time through thepinions c b a and bevel-wheelsmto the other bevel-wheel,R, thus giving motionto the shaft C by applying power in two points at the same time. The object of this arrangement is to raise and lower the Wheels K graduf ally, so that the machine may he thrown in or out of gear at the pleasure ofthe operator with ease and facility.

Fig. 3 represents another mode of accomplishing the same result. In this figure the cog-wheel K is placed upon the end ofthe shaft C, and the bevel-wheel R upon the cylinder S is placed upon the inside of the support L. This bevel-wheel is worked by the wheels fj' upon the shaft I, either directly or by means of intermediate wheels and shaft. The bevelwheel It; when operated direct-ly from the wheelsfj', has bevel-gearing half-way around on each side. The sleeve u connects the two cylinders S S2, and the motion from R is thus transmitted to both. l

It will be understood that the wheels E E turn loosely upon the axle Tf, and that by means of the cogged rims F upon these Wheels, operated by the cog-wheels Gr upon the shaft C, they are turned so as to carry the carriage forward, or either may be operated alone, so

as to` turn th`e carriage in my required direc- `g g, bevel-wheels ff, sleeves i, pinions G, rim

tion. A gang of p10ws,V,are secured to the F, whees E, and plows W, the whole being frame in such a manner that they may be eonstructedin the manner and for the purpose raised or lowered at the vWill 0f the operator, herein described.

as seenin dotted lines, Fig. 1. 2. In combination with the above, the cyl- Having thus fully described my invention, inders S S2, sleeve u, bevel-wheel R, and shaft whutI claim as new, and desire to secure by G, as described.

Letters Patent, is L. B. WOOLFOLK.

1. The arrangement of the cylinder S, pro# Witnesses:

vided with bevel-wheel R, having the shaft C O. M. ALEXANDER,

passed tl'lrongh it eccentricall y, shaft I, springs ARTHUR A. YEATMAN. 

